[tip:perf/core] perf/core: Convert to SPDX license identifiers

[tip-bot for Thomas Gleixner <tipbot@zytor.com>]

Commit-ID:  8e86e01526764e8cdc77b80a8f24f33e6847b9e7
Gitweb:     https://git.kernel.org/tip/8e86e01526764e8cdc77b80a8f24f33e6847b9e7
Author:     Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Wed, 16 Jan 2019 12:10:59 +0100
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Mon, 4 Feb 2019 08:46:11 +0100

perf/core: Convert to SPDX license identifiers

Use proper SPDX license identifiers instead of the bogus reference to
kernel-base/COPYING.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20190116111308.012666937@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/callchain.c   | 3 +--
 kernel/events/core.c        | 3 +--
 kernel/events/ring_buffer.c | 3 +--
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/kernel/events/callchain.c b/kernel/events/callchain.c
index 24a77c34e9ad..c2b41a263166 100644
--- a/kernel/events/callchain.c
+++ b/kernel/events/callchain.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Performance events callchain code, extracted from core.c:
  *
@@ -5,8 +6,6 @@
  *  Copyright (C) 2008-2011 Red Hat, Inc., Ingo Molnar
  *  Copyright (C) 2008-2011 Red Hat, Inc., Peter Zijlstra
  *  Copyright  ©  2009 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
- *
- * For licensing details see kernel-base/COPYING
  */
 
 #include <linux/perf_event.h>
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 280a72b3a553..5b89de7918d0 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Performance events core code:
  *
@@ -5,8 +6,6 @@
  *  Copyright (C) 2008-2011 Red Hat, Inc., Ingo Molnar
  *  Copyright (C) 2008-2011 Red Hat, Inc., Peter Zijlstra
  *  Copyright  ©  2009 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
- *
- * For licensing details see kernel-base/COPYING
  */
 
 #include <linux/fs.h>
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index 309ef5a64af5..ed6409300ef5 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Performance events ring-buffer code:
  *
@@ -5,8 +6,6 @@
  *  Copyright (C) 2008-2011 Red Hat, Inc., Ingo Molnar
  *  Copyright (C) 2008-2011 Red Hat, Inc., Peter Zijlstra
  *  Copyright  ©  2009 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
- *
- * For licensing details see kernel-base/COPYING
  */
 
 #include <linux/perf_event.h>